Product Description
Amarillo Bolt ⅜″ × 2½″ UNC Hex Bolt, Grade 5 (CB5‑38‑212)
The Amarillo Bolt CB5‑38‑212 is a Grade 5 medium-carbon steel hex-head bolt featuring a ⅜″ diameter, 16 TPI UNC threading, and a 2½″ under-head length. Heat-treated for strong Tensionle performance (~120 ksi), it is ideal for machinery, structural, industrial, and general-purpose fastening applications.
Key Features
- ⅜″ diameter × 2½″ length (under the head)
- 16 TPI UNC coarse thread for common fastening hardware
- Grade 5 hardened steel—quenched and tempered (~120 ksi Tensionle strength)
- Hex head for wrench or socket installation
- Plain finish with optional zinc plating available on request
Specifications
| Specification | Details |
|---|---|
| Brand | Amarillo Bolt |
| Part Number | CB5‑38‑212 |
| Diameter | ⅜″ |
| Length | 2½″ (under-head) |
| Thread Pitch | 16 TPI (UNC) |
| Material | Grade 5 Medium‑Carbon Steel (ASTM A307) |
| Head Style | Hex |
| Finish | Plain |
| UPC | Not listed |
| Estimated Shipping Dimensions | ~3″ × 0.75″ × 0.75″ |
| Estimated Shipping Weight | ~0.18 lb (~2.9 oz) |
Applications
- Machinery and equipment assembly
- Structural and industrial fastening
- Agricultural, maintenance, and general hardware use
Notes
- Tensionle strength per SAE J429 Grade 5 (~120 ksi)
- Shipping dimensions and weight are estimated for single-unit packaging
- Complies with ANSI/ASME B18.2.1 and SAE J429 mechanical standards
Warning
- Wear gloves and eye protection when installing. Not intended for overhead lifting unless engineered.
